1964 年 84 巻 5 号 p. 472-474
Two bitter principles (A and B) were isolated from the leaves of Clerodendron trichotomum THUNB. A: C24H34O9 or C26H36O10, needles of m.p. 152-155°(decomp.), [α]D+5.6°. B: C23H32O9 or C25H34O10, prisms of m.p. 232-235°, [α]D-71.5°. Both are different from clerodin and its related compounds, but should be similar to them.